This article was originally published on Phys.org


“The estimated cost of measures to limit Earth-warming greenhouse gas emissions can be more than offset by reductions in deaths and disease from air pollution, researchers said on Saturday.

It would cost $22.1 trillion (17.9 trillion euros) to $41.6 trillion between 2020 and 2050 for the world to hold average global warming under two degrees Celsius (3.6 degrees Fahrenheit), a team projected in The Lancet Planetary Health journal. For the lower, aspirational limit of 1.5 C, the cost would be between $39.7 trillion and $56.1 trillion, they estimated. But air pollution deaths could be reduced by 21-27 percent to about 100 million between 2020 and 2050 under the 2 C scenario, the team estimated, and by 28-32 percent to about 90 million at 1.5 C.

“Depending on the strategy used to mitigate , estimates suggest that the health savings from reduced air pollution could be between 1.4-2.5 times greater than the costs of climate change mitigation, globally,” they wrote. Health costs from air pollution include medical treatment, patient care, and lost productivity.

The countries likely to see the biggest health savings were air pollution-ridden India and China, said the researchers, who used computer models to project future emissions, the costs of different scenarios for curbing them, and the tally in pollution-related deaths…”

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